The current pic is a fan art. It is in no way a stealthy design. Its rcs is probably more than 1-2 square meter.
JXX needs time. It is the first plane that China would be building on its own without any foreign input. It can only materialize soon if it is another stolen/copied design, but how many 5 th gen designs are there till date?
I expect a maiden flight no sooner than 2020. 5 gen plane are really tough to build, the tech were only available to US, even Russia can't build a proper stealth plane. China is a too far from US/Russia. India is not even in the game.
If it was another 4 gen plane, then I could believe the news, not for a 5 gen.